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Two moles of helium gas (gamma = 5 | 3 ) are initially at 27^C and occupy a volume of 20 literes...

Two moles of helium gas (gamma = 5 | 3 ) are initially at 27^C and occupy a volume of 20 literes... Question From - HC Verma PHYSICS Class 11 Chapter 27 Question – 007 SPECIFIC HEAT CAPACITIES OF GASES CBSE, RBSE, UP, MP, BIHAR BOARD

QUESTION TEXT:-
Two moles of helium gas (gamma = 5 / 3 ) are initially at 27^C and occupy a volume of 20 literes. The gas is first expanded at constant pressure until the volume is doubled. Then it undergoes an adiabatic change until the temperature returns to its initial value. (a) Sketch the process in a `p_V` diagram. (b) What is the final volume and pressure of the gas ? (c) What is the work done by the gas?

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